6906386943 has 16 divisors (see below), whose sum is σ = 10305299200. Its totient is φ = 4571131320.

The previous prime is 6906386933. The next prime is 6906386947. The reversal of 6906386943 is 3496836096.

It is a happy number.

It is not a de Polignac number, because 6906386943 - 2⁸ = 6906386687 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6906386943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6906386947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 916363 + ... + 923868.

It is an arithmetic number, because the mean of its divisors is an integer number (644081200).

Almost surely, 2^6906386943 is an apocalyptic number.

6906386943 is a deficient number, since it is larger than the sum of its proper divisors (3398912257).

6906386943 is a wasteful number, since it uses less digits than its factorization.

6906386943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840379 (or 1840373 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 54.

The square root of 6906386943 is about 83104.6746158121. The cubic root of 6906386943 is about 1904.3654877332.

The spelling of 6906386943 in words is "six billion, nine hundred six million, three hundred eighty-six thousand, nine hundred forty-three".